Printing-press attachment



A. LUNDQUIST.

PRINTING PRESS ATTACHMENT.

APPLICATION FILED DEC. 9, 19 2o.

Patented July12, 1921,

[Wye 0 QFlFllTlF-H AUGUST LUNDQUIST, OE GHICAGO, ILLINOIS.

PBTNTIN'Gr-PRESS ATTACHIVIENT.

Application filed December 9, 1920.

Chicago, in the county oi Cook and State.

of Tillinois, have invented certain new and useful Improvements in Printing-Press Attachments, of which the following is a specification. v

The present invention has to do with attachments for printing presses and has particular reference to certain improvements in the means whereby the cards or sheets are exactly positioned on the swinging platen oi a reciprocating press. More particularly the main object of the invention is to pro vide certain improvements in what is known as a Miller teeder.

Other objects and uses of the invention will appear from a detailed description of the same which consists in the features of construction and combination of parts hereinafter described and claimed.

Referring to the drawing:

Figure 1 shows race view of a platen to which has been applied the attachment of the present invention; the attachment being shown in its normal condition by means of full lines and in its shifted position by means of dotted lines;

Fig. 2 shows a longitudinal section through the attachment, being on enlarged scale as compared to Fig. 1;

'Fig. 3 shows a cross section taken on the line 3-3 of Fig. 2, looking in the direction of the arrows, but on enlarged scale; and

Fig. 1 shows a cross section taken on the line l l of Fig. 2, looking in the direction of the arrows, but on enlarged scale.

In the drawing the platen is designated by the numeral 5 which is supported so that it swings back and "forth in the customary manner, rocking on the lower edge 6, or on an axis near said lower edge. When in printing position the platen is moved toward the observer, and between the prin ing operation it swings away from the observer.

The numeral 7 designates a card or sheet or other article such as an envelop set into place on the platen ready for the printing operation.- The .stops 8 and 9 are illustrated on the platen for exactly positioning the lower edge of the card, and the stop 9 is shown for positioning the card sidewise. The cards or other objects are fed Specification of Letters Patent.

Patented July 12, 1221.

Serial No. 429,350.

into place automatically by means of the Miller feeder between'the printing operatlons.

The attachment or the present invention is designated in its entirety by the numeral 10.

It includes a finger 11 pivoted to the face of the platen at the point 12, and which finger may be reciprocated by means of a link 13 each time the platen is arrested into the printing position. Pivoted with respect to the finger 11 is another finger 1 1-, the arrangement being such that the fingers 11 and 14; may turn with respect to each other as shown by the dotted lines in Fig. 1. The pivotal point of attachment between these lingers is adjustable lengthwise ot the finger 1a so that the end of said finger projecting above the finger 13 may be adjusted. This result is secured in the following manner: A plug 15 is slica ly mounted on the finger 14 to which it is connected by means of a dovetailed or undercut sliding seat 16 as shown in. Fig. 4e. A screw 17 passes through the finger 11 and through the plug 15 and into engagement with the upper surface of the finger 14 so that by tightening said screw it will clamp against the surface or the finger 14 and thus lock the parts against slippage lengthwise, but the clearances are such that even when this locking action is secured the pivoting action will still take place in a free manner.

The spring 18 has one end connected to the finger 11 at the point 19, and the other end connected to the finger 1d at the point 20. This spring is also under tension and tends to restore the fingers 11 and i l into parallelism as shown in 1, while permitting the finger to be twisted; end these functions are secured by the spring 18 within reasonable limits of adjustment of the pivotal point 17.

On the outer end of the finger it are located the cooperating prongs 21, 22 and The prong 21 is formed as a continuation of the finger 14;, and the prongs 22 and 23 are formed as the bifurcations of a plate 2%. This plate 2 1 is set onto the end portion of the finger 14 to which it is clamped by means of a block 25. This block 25 has the dove tailed or undercut seats 26 which engage the finger 14L, the plate 24k being cl amped against the finger 14: by means of a set screw 27. If desired, a lug 28 may be formed on the end of the plate 1a in the position to seat into a hole 29 of the finger 14 so as to prevent any longitudinal movement of the plate with respect to the finger.

A stop 30 is secured to the platen at such a point that as the finger 11 is rocked on its pivot 12, the finger let will engage said stop so that the further rocking movementof the finger 11 will result in pulling the finger l4 downwardly as shown by dotted lines in Fig. 1. This will insure that the prongs 21, 22 and 23 are fully disengaged from the card or other object 7, but'the sidewise movement of the prongs will carry the card or other object 7 into contact with the stop 9 prior to such disengagement.

While I have herein shown and described only a single embodiment of the features of my present invention, still I do not limit myself to said embodimentexcept .as I may do so in the claims.

I claim: I

1. The combination with the swinging platen of a printing press, of an attachment therefor comprising a pair of fingers, a pivotal connection between said fingers, the position of said pivotal connection being adj 11stable, a spring tending to maintainsaid' fingers v in alinement with each other, a pivotal connection between one of: the fingers and the platen permitting the fingers to swing over the face of the platen, a stop on the platen in position to engage the other finger and connection between the fingers tending to.

maintain them in alinement, and suitable prongs on the free end or the swinglng finger, substantially as described.

3. An attachment for printing presses comprising in combination a pair of fingers, a p vot block pivoted to one finger, a slidably ad ustable connection between said pivot block and the other fingerpermitting said other finger to be adjusted lengthwise thereon, a spring connection between the fingers tending to maintain them in alinement with respect to each other, and suitable prongs on the free end of the slidably adjustablei finger, substantially as described.

A e sT LUNDQUIST. 

